FLUKE 709 precision mA loop calibrator
The FLUKE 709 is a compact and precise mA loop calibrator for working with current loops and signal measurement in the field. It is used when generating, simulating, or measuring current in a loop, and when checking if a transmitter or other field component is behaving as it should.
The instrument handles multiple tasks in the same unit: mA source, mA simulate, mA read, mA read with loop power, and voltage measurement. This makes it practical when troubleshooting, calibrating, and testing an installation without switching between multiple instruments. The built-in 24 V DC loop power and the selectable 250 Ω resistance are relevant details because they assist with both general loop testing and HART communication.
Operation is simplified with the Quick-Set knob, and the backlit display makes it easier to read in cramped or dark workspaces. It is therefore ideal as a tool for technicians who need quick and reliable handling of measurements in the facility.
With an accuracy of 0.01% ± 2 counts and a resolution of 1 µA on the mA ranges, fine adjustment options are available when a signal needs to be precisely checked. It runs on six AAA batteries, and battery life is up to 40 hours during measurement.
Typical applications
- Testing and adjustment of 4-20 mA loops
- Troubleshooting transmitters and signal paths
- Simulation and measurement of mA signals in industry
- Checking loop voltage and loop power
Specifications
- Manufacturer: FLUKE
- MPN: 4234350
- Functions: mA source, mA simulate, mA read, mA read/loop power, volts read
- Ranges: 0 to 24 mA and 0 to 30 V DC
- Accuracy: 0.01% ± 2 counts
- Resolution: 1 µA on mA ranges and 1 mV on the volt range
- Built-in selectable 250 Ω resistor for HART communication
- 24 V DC loop power with mA measure mode (-25% to 125%)
- Power supply: 6 x AAA alkaline batteries
- Battery life: typically 40 hours
- Dimensions: 15 x 9 x 3 cm
- Datasheet: See datasheet from the manufacturer
- Video: See product video from the manufacturer
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